<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .big {
            width: 1240px;
            height: 600px;
            background-color: #d4d1d1;
            margin: 100px auto;
        }

        .left {
            float: left;
            width: 200px;
            height: 600px;
            background-color: #64b6ec;
        }


        .right {
            float: left;
            width: 1040px;
            height: 600px;
            background-color: #1b8bf3;
        }

        .right ul li {
            list-style: none;
            float: left;
            width: 250px;
            height: 295px;
            background-color: #77e9b4;
            margin-left: 10px;
        }

        .right ul .item {
            margin-top: 10px;
        }
    </style>
</head>

<body>
    <div class="big">
        <div class="left"></div>
        <div class="right">
            <ul>
                <li></li>
                <li></li>
                <li></li>
                <li></li>
                <li class="item"></li>
                <li class="item"></li>
                <li class="item"></li>
                <li class="item"></li>
            </ul>
        </div>
    </div>
</body>

</html>